11161055206 has 16 divisors (see below), whose sum is σ = 19134673920. Its totient is φ = 4782950280.

The previous prime is 11161055201. The next prime is 11161055261. The reversal of 11161055206 is 60255016111.

It is a happy number.

It is a super-2 number, since 2×11161055206² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11161055201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260235 + ... + 300073.

It is an arithmetic number, because the mean of its divisors is an integer number (1195917120).

Almost surely, 2^11161055206 is an apocalyptic number.

11161055206 is a deficient number, since it is larger than the sum of its proper divisors (7973618714).

11161055206 is a wasteful number, since it uses less digits than its factorization.

11161055206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59859.

The product of its (nonzero) digits is 1800, while the sum is 28.

The spelling of 11161055206 in words is "eleven billion, one hundred sixty-one million, fifty-five thousand, two hundred six".